U.S. Air Force Honor Guard welcomes Royal Canadian Air Force Commander Lieutenant General Al Meinzinger and U.S. Air Force Chief of Staff General David Goldfein to the Tomb of the Unknown Soldier for a wreath-laying ceremony at Arlington National Cemetery, Arlington, Virginia, October 17, 2018. (U.S. Air Force Photo/Andy Morataya)

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Photo by: Andy Morataya |  VIRIN: 181017-F-JJ904-0044.JPG